a. Explain why the muscles of the legs of a child with Duchenne’s muscular dystrophy appear large. b. Explain why only boys are affected by Duchenne’s muscular dystrophy. c. Explain why a child with...

a. Explain why the muscles of the legs of a child
with Duchenne’s muscular dystrophy appear
large.
b. Explain why only boys are affected by
Duchenne’s muscular dystrophy.
c. Explain why a child with muscular dystrophy
pulls himself up a flight of stairs.